Trident OS/2  Display Drivers

                             February 1995


   Thank you for using Trident display adapter. This Trident OS/2 Display 
   Drivers utility supports the following resolutions with OS/2:

                640x480x256
                800x600x256
                1024x768x256
                1280x1024x256  (2M)
                1600x1200x256  (4M)
                640x480x65K
                800x600x65K
                1024x768x65K   (2M)
                1280x1024x65K  (4M)
                640x480x16.7M
                800x600x16.7M  (2M)
                1024x768x16.7M (4M)

   
   This utility includes Trident OS/2 Display Drivers installation
   and Trident OS/2 Display Drivers setting.



   Installation Procedure

   1. Insert Trident OS/2 Display Drivers diskette in Drive A.
   
   From the OS/2 Desktop:

   Open the OS/2 System folder, double-click on the Drives object,
   and then double-click on drive A. When the drive A folder opens,
   double-click on INSTALL.EXE. You can also click on the floppy
   drive object from Launch Pad, and then double-click on INSTALL.EXE.

   From the OS/2 Command Line:

   Open OS/2 System folder, double-click on Command Prompts, and
   double-click on either OS/2 Window or OS/2 Full Screen. Then, at
   the command line, go to drive A and type:

        INSTALL.EXE

   and press Enter.
   
   2. The first page of the installation program's window is Screen
      Resolution selection page. 
   
   . Select the resolution and color depth.

   3. The second page is Monitor Model selection page. 
   
   . Click on Monitor tab to go to this page.
   . Point to and click on the down arrow button to show a list of
     monitor models.
   . Select the monitor model. If you cannot find your monitor's
     model, select "Default".

   4. The third page is Refresh Rate selection page.

   . Click on Refresh tab to go to this page.
   . The refresh rates displayed are the recommended refresh rate for
     each resolution by your monitor manufacturer.
   . You can change the refresh rates by clicking on down arrow button 
     to select the refresh rates for corresponding resolution.

   5. The fourth page is Frame Buffer Address selection page (Vesa
      Local Bus Adapter only).

   . Click Desktop tab to go to this page.
   . Point to and click the down arrow button to show a list of
     available frame buffer address (in unit of MBytes).

   6. After the selections, click on the Install button to complete
      the installation.

   7. Reboot OS/2 to have this installation take effect.



   Display Drivers Setting Procedure


   1. Double-click on the Trident folder, and then double-click
      Display Setting object.

   2. To change resolution and/or color depth

   . Click Screen tab.
   . Select the resolution and color depth.
   . Click Set button.

   3. To change refresh rate
   . Click Refresh tab.
   . Point to and click down arrow button.
   . Select the refresh rate.
   . Click Set button to take effect.
   . If you don't want the selected refresh rate, click Undo
     button or press 'U' key to return to previous refresh rate.

   4. To change frame buffer address (Vesa Local Bus Adapter only)

   . Click Desktop tab.
   . Point to and click the down arrow button to show a list of
     available frame buffer address (in unit of MBytes).
   . Click Set button.



   If you have selected to change resolution and/or frame buffer
   address, you must reboot OS/2 to have the changes take effect.



   Note:

   If you decide to change your hardware system configuration, such
   as upgrading video memory or system memory, you should

   . Change resolution to 640x480x16(VGA).
   . Change hardware configuration.
   . Reinstall Trident OS/2 Display Drivers.



   You can add or delete monitor models by modifying TMONITOR.INF
   file in this utility diskette.

   The format of each line in this file is:

   . The monitor model and company name inside two double quote marks.
   . Four recommended refresh rates data for 640x480, 800x600,
     1024x768, 1280x1024, and 1600x1200 resolutions.
   . Four maximum supported refresh rates data for 640x480, 800x600,
     1024x768, 1280x1024, and 1600x1200 resolutions. If some resolutions 
     are not supported, put "0" in it.


   If you add a line
        
        FrameBufferAddress=xxx

        where xxx is frame buffer address in unit of MBytes

   into TR_AGI.INF file, display drivers will set frame buffer to
   this address.



   Copyright Trident Microsystem, 1995, all rights reserved.